<template>
  <view class="my-settle-container">
    <!-- 全选 -->
    <label class="radio" @click="changeAllState">
      <radio color="#C00000" :checked="isFullCheck" /><text>全选</text>
    </label>
    <!-- 合计 -->
    <view class="amout-box">
      合计:<text class="amount"> ¥ {{checkedGoodsAmount}}</text>
    </view>
    <!-- 结算 -->
    <view class="btn-settle" @click="settlement">
      结算({{checkedCount}})
    </view>
  </view>
</template>

<script>
  import {
    mapGetters,
    mapMutations,
    mapState,
  } from 'vuex'
  export default {
    name: "my-settle",
    data() {
      return {
        //倒计时的秒后数 默认值等于3
        seconds: 3,
        //定时器的id
        timer: null
      };
    },
    computed: {
      ...mapGetters('m_cart', ['checkedCount', 'total', 'checkedGoodsAmount']),
      ...mapGetters('m_user', ['addstr']),
      ...mapState('m_user', ['token']),
      ...mapState('m_cart', ['cart']),
      isFullCheck() {
        return this.total === this.checkedCount
      }
    },
    methods: {
      ...mapMutations('m_cart', ['updateAllGoodsState']),
      ...mapMutations('m_user', ['updateRedirectInfo']),
      //修改购物车中所有商品选中状态
      changeAllState() {
        this.updateAllGoodsState(!this.isFullCheck)
      },
      //结算方法
      settlement() {
        //先判断是否勾选了要结算的商品 为空则要提示
        if (!this.checkedCount) return uni.$showMsg('请选择要结算的商品 !')
        //判断用户是否选择了收获地址
        if (!this.addstr) return uni.$showMsg('请选择收获地址 !')
        //判断用户是否登陆了 token
        //修改跳转
        // if (!this.token) return uni.$showMsg('请先登陆 !')
        if (!this.token) return this.delayNavigate()

        //实现微信支付
        this.payOrder()

      },
      async payOrder() {
        //1.创建订单
        // 1. 创建订单
        // 1.1 组织订单的信息对象
        const orderInfo = {
          // 开发期间，注释掉真实的订单价格，
          // order_price: this.checkedGoodsAmount,
          // 写死订单总价为 1 分钱
          order_price: 0.01,
          //订单的收获地址
          consignee_addr: this.addstr,
          goods: this.cart.filter(x => x.goods_state).map(x => ({
            goods_id: x.goods_id,
            goods_number: x.goods_count,
            goods_price: x.goods_price
          }))
        }

        // 1.2 发起请求创建订单
        // const {
        //   data: res
        // } = await uni.$http.post('/api/public/v1/my/orders/create', orderInfo)
        // if (res.meta.status !== 200) return uni.$showMsg('创建订单失败！')

        //无权限 创建一个假的订单信息
        const res = {
          "message": {
            order_id: 45,
            user_id: 12,
            order_number: "GD20180504000000000045",
            order_price: 0.1,
            order_pay: "0",
            is_send: "否",
            trade_no: "",
            order_fapiao_title: "个人",
            order_fapiao_company: "",
            order_fapiao_content: "",
            consignee_addr: "广州市天河区",
            pay_status: "0",
            create_time: 1525408071,
            update_time: 1525408071,
            order_detail: "[{\"goods_id\":55578,\"goods_name\":\"初语2017秋装新款潮牌女装加绒宽松BF风慵懒卫衣女套头连帽上衣\",\"goods_price\":279,\"goods_small_logo\":\"http://image2.suning.cn/uimg/b2c/newcatentries/0070067836-000000000690453616_2_400x400.jpg\",\"counts\":1,\"selectStatus\":true}]",
            goods: [{
              id: 64,
              order_id: 45,
              goods_id: 5,
              goods_price: 15,
              goods_number: 11,
              goods_total_price: 15
            }]
          },
          "meta": {
            "msg": "创建订单成功",
            "status": 200
          }
        }


        // 1.3 得到服务器响应的“订单编号”
        const orderNumber = res.message.order_number
        // console.log(orderNumber);

        // 2. 订单预支付
        // 2.1 发起请求获取订单的支付信息
        // const { data: res2 } = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder', { order_number: orderNumber })
        //假数据替换请求
        const res2 = {
          message: {
            pay: {
              timeStamp: "1525681145",
              nonceStr: "BkPggorBXZwPGXe3",
              package: "prepay_id=wx071619042918087bb4c1d3d72999385683",
              signType: "MD5",
              paySign: "D1642DEEF1663C8012EDEB9297E1D516"
            },
            order_number: "GD20180507000000000110"
          },
          meta: {
            msg: "预付订单生成成功",
            status: 200
          }
        }
        // 2.2 预付订单生成失败 
        if (res2.meta.status !== 200) return uni.$showError('预付订单生成失败！')
        // 2.3 得到订单支付相关的必要参数
        const payInfo = res2.message.pay
        // console.log(payInfo);

        // 3. 发起微信支付
        // 3.1 调用 uni.requestPayment() 发起微信支付
        const [err, succ] = await uni.requestPayment(payInfo)
        // 3.2 未完成支付
        if (err) return uni.$showMsg('订单未支付！')
        // 3.3 完成了支付，进一步查询支付的结果
        const {
          data: res3
        } = await uni.$http.post('/api/public/v1/my/orders/chkOrder', {
          order_number: orderNumber
        })
        // const res3 = {
        //   message: "支付成功",
        //   meta: {
        //     "msg": "验证成功",
        //     "status": 200
        //   }
        // }
        // 3.4 检测到订单未支付
        if (res3.meta.status !== 200) return uni.$showMsg('订单未支付！')
        // 3.5 检测到订单支付完成
        uni.showToast({
          title: '支付完成！',
          icon: 'success'
        })

      },

      //延时导航到my页面
      delayNavigate() {
        //防止跳转到my页面后用户不登录 让每次点击deconds重置为3
        this.seconds = 3

        this.showTips(this.seconds)

        //定时器 每隔一秒减少一次秒数
        this.timer = setInterval(() => {
          this.seconds--

          //判断秒数小于等于0
          if (this.seconds <= 0) {
            clearInterval(this.timer)

            //清除完定时器跳转
            uni.switchTab({
              url: '/pages/my/my',
              success: () => {
                this.updateRedirectInfo({
                  openType: 'switchTab',
                  from: '/pages/cart/cart'
                })
              }
            })
            //防止跳转后再次弹出提示框 return出去不再执行提示框
            return
          }

          this.showTips(this.seconds)
        }, 1000)
      },
      //展示倒计时的提示消息
      showTips(n) {
        // 调用 uni.showToast() 方法，展示提示消息
        uni.showToast({
          // 不展示任何图标
          icon: 'none',
          // 提示的消息
          title: '请登录后再结算！' + n + ' 秒后自动跳转到登录页',
          // 为页面添加透明遮罩，防止点击穿透
          mask: true,
          // 1.5 秒后自动消失
          duration: 1500
        })
      }
    }
  }
</script>

<style lang="scss">
  .my-settle-container {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50px;
    background-color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    padding-left: 5px;

    .radio {
      display: flex;
      align-items: center;
    }

    .amout-box {
      .amount {
        color: #c00000;
        font-weight: 700;
      }
    }

    .btn-settle {
      background-color: #c00000;
      height: 50px;
      color: white;
      line-height: 50px;
      padding: 0 10px;
      min-width: 100px;
      text-align: center;
    }
  }
</style>
